Atrial septal defect

types :

1 Ostium secundum atrial septal defect

The ostium secundum atrial septal defect is the most common type of atrial septal defect, and comprises 6ā€“10% of all congenital heart diseases.

Most individuals with an uncorrected secundum ASD do not have significant symptoms through early adulthood. More than 70 percent develop symptoms by about 40 years of age. Symptoms are typically decreased exercise tolerance, easy fatigueability, palpitations, and syncope.

Complications of an uncorrected secundum ASD include pulmonary hypertension, right-sided heart failure, atrial fibrillation or flutter, stroke, and Eisenmenger’s syndrome.

2 Patent foramen ovale

A patent foramen ovale (PFO) is a small channel that has some hemodynamic consequence; it is a remnant of the fetal foramen ovale. Clinically it is linked to decompression sickness, paradoxical embolism and migraine. On echocardiography, there may not be any shunting of blood noted except when the patient coughs.

There is debate within the neurology and cardiology communities about the role of a PFO in cryptogenic (i.e. of unknown cause) neurologic events such as strokes and transient ischemia attacks (TIAs) without any other potential cause.

3 Ostium primum atrial septal defect

A defect in the ostium primum is occasionally classified as an atrial septal defect,[9] but it is more commonly classified as an atrioventricular septal defect.[10][11] Ostium primum defects are less common than ostium secundum defects.

Advertisements
This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s